A positive ion is formed when an atom loses one or more of these
All lines of longitude are measured east or west of this line
The inventors of this tiny device won the 1956 Nobel Prize for Physics
It describes objects through which light can pass, but through which you can't see clearly
One can be used to step up or step down an alternating current
Some botanists believe this process in plants is equivalent to sweating in humans
Any device that turns one kind of energy into another; a microphone is an example of one
1 of the 4 basic forces in nature is this one that keeps you earthbound
It's the tendency of a material to return to its original dimensions after a stress is removed
Electric current is the flow of these through a wire